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Crystal

Understanding Crystal Oscillator Circuits

Last Updated on September 22, 2026 by Swagatam 10 Comments

colpitts crystal oscillator

Crystal oscillators are electronics devices that produce stable, accurate, and repeated signals that are widely employed in a wide range of electronic applications. Because of their great stability, precision, and low noise, they have become a crucial component in many electronic circuits. In this post, we will look at how crystal oscillators function, as well […]

Filed Under: Oscillator Circuits Tagged With: Circuits, Crystal, Oscillator, Understanding

Simple Crystal Tester Circuit

Last Updated on June 8, 2026 by Swagatam 15 Comments

crystal tester compressed

In this post I have explained how to build a simple crystal tester circuit using ordinary parts like transistors, resistors, diodes and capacitors. What is a Crystal A crystal can be used for making an electronic oscillator circuit by using the mechanical resonance of a piezoelectric vibrating crystal to generate an electrical frequency having a […]

Filed Under: Meters and Testers Tagged With: Crystal, Simple, Tester

Make this Crystal Radio Set Circuit using No Batteries

Last Updated on May 15, 2026 by Swagatam 14 Comments

crystal

A crystal radio circuit is probably the simplest form of radio that uses hardly any electronic components, and needs absolutely no external power for the operations. Crystal Radio Concept The only downside of this radio concept is the requirement of a very long antenna and a deep earthing, therefore this unit is not something which […]

Filed Under: Audio and Amplifier Projects Tagged With: Batteries, Crystal, Radio

Crystal Radio Sets with Amplifier Circuit

Last Updated on May 15, 2026 by Swagatam 42 Comments

crystal set amplifier circuit using asingle transistor

A crystal radio receiver, often known as a crystal set, is a simplest form of radio receiver that was widely used in the initial periods of radio. A crystal radio set does not require any external power supply to operate. Instead, it simply makes sound using the energy of the radio signals that is received. […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Crystal, Radio, sets

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